import java.util.HashMap;
import java.util.Map;

/**
 * @author Lu Ruotong
 * @date 2021/9/29 8:08
 */
public class Chapter01 {
    public static void main(String[] args) {
        Map<Integer,String> map =new HashMap<Integer,String>();
        map.put(1,"haha");
        map.put(2,"yaya");
        map.put(3,"xixi");


    }
}
